/*
 * Copyright 2020 eBlocker Open Source UG (haftungsbeschraenkt)
 *
 * Licensed under the EUPL, Version 1.2 or - as soon they will be
 * approved by the European Commission - subsequent versions of the EUPL
 * (the "License"); You may not use this work except in compliance with
 * the License. You may obtain a copy of the License at:
 *
 *   https://joinup.ec.europa.eu/page/eupl-text-11-12
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * permissions and limitations under the License.
 */
package org.eblocker.server.icap.transaction.processor;

import org.eblocker.server.common.RequireFeature;
import org.eblocker.server.common.service.FilterStatisticsService;
import org.eblocker.server.common.data.FilterMode;
import org.eblocker.server.common.session.Session;
import org.eblocker.server.common.ssl.SslService;
import org.eblocker.server.common.util.FilterModeUtils;
import org.eblocker.server.http.service.DeviceService;
import org.eblocker.server.icap.transaction.Transaction;
import org.eblocker.server.icap.transaction.TransactionProcessor;
import org.eblocker.registration.ProductFeature;
import com.google.inject.Inject;
import com.google.inject.name.Named;

@RequireFeature(ProductFeature.PRO)
public class PatternFilterStatisticsProcessor implements TransactionProcessor  {

    private final boolean plugAndPlayEnableAdvanced;
    private final DeviceService deviceService;
    private final FilterStatisticsService filterStatisticsService;
    private final SslService sslService;

    @Inject
    public PatternFilterStatisticsProcessor(@Named("filter.mode.plugandplay.enable.advanced.filters") boolean plugAndPlayEnableAdvanced,
                                            DeviceService deviceService,
                                            FilterStatisticsService filterStatisticsService,
                                            SslService sslService) {
        this.plugAndPlayEnableAdvanced = plugAndPlayEnableAdvanced;
        this.deviceService = deviceService;
        this.filterStatisticsService = filterStatisticsService;
        this.sslService = sslService;
    }

    @Override
    public boolean process(Transaction transaction) {
        Session session = transaction.getSession();
        FilterMode filterMode = FilterModeUtils.getEffectiveFilterMode(sslService.isSslEnabled(), deviceService.getDeviceById(session.getDeviceId()));
        boolean patternBasedFiltersEnabled = filterMode == FilterMode.ADVANCED || filterMode == FilterMode.PLUG_AND_PLAY && plugAndPlayEnableAdvanced;
        session.setPatternFiltersEnabled(patternBasedFiltersEnabled);

        if (patternBasedFiltersEnabled) {
            filterStatisticsService.countQuery("pattern", transaction.getOriginalClientIP());
        }

        return true;
    }
}
